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Read(Get) Appsettings Value from App.Config File in C#, VB.NET

Feb 26, 2015

Here I will explain how to read or get appsettings values from app.config file in
c#, By using System.Configuration reference we can read or get appsettings values from app.config file in windows or console application in c#,


In previous articles I explained export datagridview data to excel in windows application, create windows forms application setup file in c#,, delete windows service from system, create windows service in c#, and many more articles related to using c#, Now I will explain how to read or get appsettings values from app.config file in c#,

To read appsettings values from app.config file first create new windows application and open your app.config file and add appsettings string like as shown below

<add key="dbconnection" value="DataSource=Suresh;Initial Catalog=Praveendb; Integrated Security=true" />

To read this appsettings value in our windows or console application we need to add System.Configuration reference for that follow below steps

Right click on your References folder à select Add Reference à select .NET tab à in that select System.Configuration à Click OK like as shown below

Once we add System.Configuration reference that our application reference folder will be like as shown below

After completion of adding reference add following namespaces in codebehind

C# Code

using System.Configuration;


Imports System.Configuration;

After completion of adding namespaces you need to write the code like as shown below to get appsettings string from app.config file

C# Code

string strcon = ConfigurationManager.AppSettings["dbconnection"];


Dim strcon As String = ConfigurationManager. AppSettings ["dbconnection"];

I hope it helps you to read appsettings values from app.config file…. Happy coding…

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